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Latest Terrestrial planets Stories

MESSENGER To Capture Earth, Moon In Series Of Images This Weekend
2013-07-19 07:10:22

Lawrence LeBlond for redOrbit.com - Your Universe Online We previously reported the NASA/ESA/ASI Cassini spacecraft was preparing to take an amazing picture of Earth as Saturn encountered a solar eclipse. This event is set to occur late this afternoon between 5:27 and 5:42 pm. The Earth will pose for Cassini, which is more than 900 million miles away, and NASA is encouraging all Americans to go out and photobomb Cassini, and then share their pictures via the Internet. The Cassini images...

Mercury History Masked Volcanic Activity
2013-07-05 11:03:48

Brett Smith for redOrbit.com - Your Universe Online Ever since NASA's Mariner 10 sent back the first images of Mercury, scientists have been fascinated by the planet's unusually smooth surface. According to an analysis of images provided by NASA's Mercury-orbiting MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging), a period of heavy volcanic activity essentially gave the planet a makeover about 4 billion years ago, erasing the first 400 to 500 million years of its...

NASA Releases High-Resolution Images Of Mercury’s Surface
2013-03-10 07:09:00

redOrbit Staff & Wire Reports - Your Universe Online Several new, high-resolution images of Mercury were among the data obtained by NASA´s Mercury Surface, Space Environment, Geochemistry, and Ranging (MESSENGER) satellite and released by the US space agency on Friday. The images, which show the crater-filled surface of our solar system´s innermost planet in “unprecedented detail,” were obtained by MESSENGER during its 13th through 18th month in orbit around...

Mercury Shows Off Its Colorful Side
2013-02-18 10:02:18

[ Watch the Video: NASA Captures Planet Mercury In Color HD ] redOrbit Staff & Wire Reports - Your Universe Online NASA scientists have used thousands of images acquired by the Messenger probe during its first year in orbit around Mercury in order to create a colorful, high-resolution map of the planet, various media outlets reported on Friday. According to the Daily Mail, the images of Mercury, which appears to be brownish-gray in color when viewed from here on Earth, were taken...

Step Outside And See Mercury At Sunset
2013-02-09 10:02:39

NASA Science NASA has recently discovered a very strange planet. Its days are twice as long as its years. It has a tail like a comet. It is hot enough to melt lead, yet capped by deposits of ice. And to top it all off ... it appears to be pink. The planet is Mercury. Of course, astronomers have known about Mercury for thousands of years, but since NASA's MESSENGER probe went into orbit around Mercury in 2011, researchers feel like they've been discovering the innermost planet all...

Super-Earths May Actually Be Mini-Neptunes
2013-02-04 19:14:15

Lee Rannals for redOrbit.com — Your Universe Online Finding planets outside of our own Solar System has become a bit of a hot topic in the scientific community, and the enthusiasm behind the discovery of "Earth-like" planets has been on the rise, but a new study suggests we may want to tone down our excitement a bit. A new study led by Dr. Helmut Lammer of the Space Research Institute (IWF) at the Austrian Academy of Sciences says that maybe these "Earth-like" planets may not be...

Diamond Planet
2012-10-11 12:25:19

Lee Rannals for redOrbit.com - Your Universe Online One nearby super-Earth planet could have a lot more "bling" on it than our planet, because astronomers say it maybe a diamond planet. Yale University scientists reported in the Astrophysical Journal Letters that the surface of 55 Cancri e is likely covered in graphite and diamond, rather than water and granite. The planet has a radius twice of Earth's, and a mass eight times greater, allowing it to fall into the classification...

Super-Earths May Not Be As Earth-Like As Name Suggests
2012-09-26 14:10:34

Lee Rannals for redOrbit.com — Your Universe Online A new study presented at the European Planetary Science Congress on Wednesday shows just how rare our Earth really is. Super-Earths are out there, and exoplanet hunters estimate there could be billions of the planets. However, the new research suggests that just because they are Super-Earths, doesn't mean they are capable of hosting life. "We are discovering planets orbiting distant stars that are similar to Earth in...

Mickey Mouse on Mercury
2012-09-19 12:08:29

Lee Rannals for redOrbit.com - Your Universe Online After spending the last year-and-a-half orbiting Mercury, NASA's MESSENGER spacecraft is revealing new information about the planet that lies closest to the sun. New x-ray data from the space probe shows that the planet contains high levels of magnesium and sulfur on its surface, making its composition quite different than that of other planets. MESSENGER's X-ray spectrometer shows a planet whose northern volcanic plains formed...


Latest Terrestrial planets Reference Libraries

6_ca87660286bca43fbd7e3f90543baaa72
2004-10-19 04:45:42

Terrestrial Planet -- A terrestrial planet is a planet that is mostly composed of silicate rocks and may or may not have a relatively thin atmosphere. The term is derived from the Greek word for Earth, so an alternate definition would be those planets that are more Earth-like than not. Terrestrial planets are very different from gas giants, which may or may not have solid surfaces and are composed mostly of hydrogen and helium in various physical states. Only one terrestrial planet,...

4_eccd202c9b173d8cc2bddcaa6629203b2
2004-10-19 04:45:40

The Planet Venus is the second planet from the sun. It is often called the evening star or morning star and is brighter than any object in the sky except the sun and the moon. Because its orbit lies between the sun and the orbit of the earth, Venus passes through phases like those of the moon, varying from a large bright crescent when the planet is near inferior conjunction (nearest the earth) to a smaller silvery disk when it is at superior conjunction (farthest from the earth). Since...

4_9748baf12fb7dd89aa4315d7732196cd2
2004-10-19 04:45:40

The Planet Mercury -- in astronomy, nearest planet to the sun, at a mean distance of 36 million mi (58 million km); its period of revolution is 88 days. Mercury passes through phases similar to those of the moon as it completes each revolution about the sun, although the visible disk varies in size with respect to its distance from the earth. Because its greatest elongation is 28, it is seen only for a short time after sunset or before sunrise. Since observation of Mercury is...

4_81f631e16d8d1d35870c180f342c83a12
2004-10-19 04:45:40

The Planet Mars -- in astronomy, 4th planet from the sun, with an orbit next in order beyond that of the earth. Physical Characteristics Mars has a striking red appearance, and in its most favorable position for viewing, when it is opposite the sun, it is twice as bright as Sirius, the brightest star. Mars has a diameter of 4,200 mi (6,800 km), just over half the diameter of the earth, and its mass is only 11% of the earth's mass. The planet has a very thin atmosphere consisting...

4_33609f8ebef994f54be143abe0bef9f42
2004-10-19 04:45:40

Earth -- in geology and astronomy, fifth largest planet of the solar system and the only planet definitely known to support life. Gravitational forces have molded the earth, like all celestial bodies, into a spherical shape. However, the earth is not an exact sphere, being slightly flattened at the poles and bulging at the equator. The equatorial diameter is c.7,926 mi (12,760 km) and the polar diameter 7,900 mi (12,720 km); the circumference at the equator is c.24,830 mi (40,000 km)....

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Word of the Day
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
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